Gastric ulcer is a common disease and the following symptoms should be suspected as signs of gastric ulcer when they occur. Pain: Typical gastric ulcer symptoms are characterized by upper abdominal pain, which is often referred to as “stomach pain”. The pain occurs after the meal, due to the increased gastric power after the meal, grinding food is the stimulation of the ulcer is enhanced, until the next meal before the pain can be gradually relieved, this is the so-called “rhythmic” pain, that is, “eating – pain – relief”. The pain can sometimes radiate to the corresponding area in the back. It may be accompanied by bloating and belching. Eating alkaline foods such as soda crackers can also relieve the pain. Patients are also generally sensitive to raw, cold, sour and spicy irritating foods, and drinking alcohol can aggravate pain or induce pain. An overfull diet can aggravate pain, and some patients even voluntarily reduce their food intake for fear of post-meal pain and consequent weight loss. Seasonality: The abdominal pain symptoms of typical gastric ulcer patients also have a seasonal pattern, occurring in the fall, winter or winter-spring change of seasons. The pain is recurrent, recurring over many years, relieving on its own and worsening with stress and exertion. Bleeding: Gastrointestinal bleeding can occur when the ulcer erodes the blood vessels in patients with gastric ulcer, requiring emergency treatment such as vomiting blood and black stool. In severe cases, perforation may occur, and sudden onset of severe abdominal pain, which is unbearable, also requires emergency treatment. Some patients present with bleeding and perforation during the first ulcer attack. A significant proportion of patients with gastric ulcers who take aspirin and NSAIDs have no abdominal pain, and these “silent ulcer” ulcers are more likely to develop complications. Complications from medication-induced ulcers are more severe than in patients with no history of medication use. Population: The age of onset of gastric ulcers is relatively high in people over the age of 40. Therefore, gastric ulcer is a relatively common disease, once the above symptoms are found, the existence of ulcers should be suspected, especially in people over forty years of age, should pay more attention, should be timely examination, formal treatment.